7.78% is the change from 591 to 637
Calculation steps:
[( 637 - 591 ) ÷ 591] x 100 = 7.78%
Formula
Percentage change = [(637 - 591) / 591] x 100
Subtract the new number by the original number
637 - 591 = 46
46 ÷ 591 = 0.077834179357022
0.077834179357022 x 100 = 7.78%